Remark 2.27:  As we have already mentioned,
the monodromy group of \((M,I)\)  can be also described
as a subgroup of the group \(O(H^2(M, {Z}), q)\) 
generated by monodromy transform maps for
Gauss-Manin local systems obtained from all
deformations of \((M,I)\)  over a complex base
([1]}). This is
how this group was originally defined by Markman
([2]}, [3]}).
